     HISTORY FILE FOR CIRCUIT SHOP
     =============================

     Version 1.03 (May 1998)
     -----------------------
     1. Addition of Capacitor Circuit Time Constant and
        Inductor Circuit Time Constant exercises.
     2. In addition to DC analysis, Circuit Shop now supports
        sinusoidal steady state analysis for circuits composed
        of resistors, capacitors, inductors, ground points,
        voltage sources, current sources and device meters (see
        online help topic Sinusoidal steady state Analysis).
     3. Device meters now support the following meter types and
        output display formats (see online help topics Device
        Meter and Edit Meter Dialog Box).
          - Voltage and current - magnitudes
                                - RMS
          - Voltage - magnitude and phase (degrees)
                    - magnitude and phase (radians)
                    - real and imaginary phasor
          - Current - magnitude and phase (degrees)
                    - magnitude and phase (radians)
                    - real and imaginary phasor
          - Impedance - magnitude and phase (degrees)
                      - magnitude and phase (radians)
                      - real and imaginary phasor
     4. Addition of AC voltage and current sources, and addition
        of a new dialog box to define source id, name, magnitude,
        phase and frequency parameters (see online help topic
        Edit Source Dialog Box).
     5. Addition of a source sub-toolkit on the analog device
        toolkit.  The toolkit contains battery, AC voltage source
        and AC current source devices  (see online help topics
        Analog Device Toolkit and Source Toolkit).
     6. Earth and chassis grounds are supported as common points
        in circuits and can be used in sinusoidal steady state
        analysis circuits (see online help topic Sinusoidal
        Steady State Analysis).
     7. For convenience, the pointer, wire and connector tools have
        been moved to the toolbar (see online help topic Toolbar
        Commands).
     8. Suffixes and units are displayed for device values,
        voltages, currents and frequencies. E.g. resistors k, M;
        voltage mV, kV; capacitors uF, pF; frequency kHz, MHz
        etc. see online help topic Unit Conversion)

     Version 1.02 (February 1998)
     ----------------------------
     1. Addition of transformer and alternating current
        tutorials.
     2. Addition of unlimited diagram edit undo and redo command
        capabilities.
     3. Addition of cut/paste buffer commands: Cut, Copy, Paste,
        Append and Select All.  Any number of objects can be
        placed in the cut paste buffer and objects can be
        transferred from one diagram to another.
     4. Support for both free form, straight and curved lines.
        Line vertices may be added and removed, and entire
        lines may be copied, moved or deleted, the same as most
        objects.
     5. Addition of short cut (accelerator) keys for many menu
        commands.
     6. If multiple objects overlap, the pointer tool will now
        select the smallest object.

     Version 1.01 (December 1997)
     ----------------------------
     1. Addition of capacitor and inductor tutorials.
     2. Addition of a digital device toolkit which includes:
        * the full set of logical gates: and, or, exclusive-or,
          not, nand, nor and exclusive-nor.
        * integrated circuits with the ability to specify any
          number of side and top/bottom inputs.
     3. New devices: 2 & 3 prong female and male plugs.
     4. An easy way to delete wire vertices.  Just grab the
        vertex and drag it to form a straight wire.
     5. A faster and more robust mesh generator and circuit
        analyzer.

     Version 1.00 (October 1997)
     ---------------------------
     1. Initial release.


